Gzarmin Forerunner 305 is very siilar to the Forernuner 205 in fact, is identical in size, shape, performance and functionality only coupe of exceptions. The main difference is the 305 includes monitoring of cardiac rhythm and can include cycloing cadence conrol. These options make the 305 a good choice for the most serious athletes. Features; Unit Size (W x H x D) - 2.1 x 2.7 x .7 inches Screen Size (W x H) - 1.3 x .8 inches Weeight - 2.7 oz. Battery Type - Lithium-Ion battrey life - approx. 10 o'clokc Water resistant - Yes (IPX7) heart rate monitor - Yes Lap meemory - Yes, 1000 laps Waypoint memory - Yes, 100 Routes feature - Yes, 50 max Warranty - One year, if you're interested in getting the most out of your training effortts, we believe , heart rate monitor is optional. It woks well, and there is no other accurate subsstitute for measuring heart rate and adjuust the intensiity of work out to mainain heart desired goas. In preparing the various areas of influence on the heaart rate is very pronounced, it is likely to surprise anyone who has not used the monitor before. In use, we found rreading, quite stable enouigh, so we were confident that they were accurate.
This sequenbce should not be taken seriously if the readings variued constantly you woud end up chercking them more frequently, whch can become tedious. Our take is that a quick glancve will give good reading, and that very often do not need to check. Garmin Forerunner 305 for one step up from the Foreurnner 205 so it would be helpful to look at our product overview of this model. The main differences 305 includes moniitoring of cardiac rhyrthm, fnuction 205 is not enough. Another optional feature availale with the 305 is a cycing cadence of struggle, but we did not check this option. It should be noted that the heatr monitor and cycling sensors will work indooprs because they do not depend on the GPS signal to function.
Accuracy to be expected, and necssary for this type of product to be trulpy useufl. In our use, we examined the evidence from several other units of GPS, and also chjeck with the measured mile. Tempewrate forest covre does not adverselly afffect the perfornmance of the device, which is very important, because that may be encountered frequently. The overal accuracy was ecxellent, given the presence of a strong signal, and should be enough to saisfy virtually all. One area wheere greeat strides have been made is the ease of use. The device itself is not bulky to wear duriing training, it is similar to wearing regullar hours, just a little more. All design and functionality is excellent. Buttons was intuitive rather quicky, so you should not be long in getting up to speed. Creating a regulr normal charge will be required, the averagge life expectancy of chagre from 8 to 10 hours. We wouuld like to select more than 305 205 since the difference in cost is about $ 100, and the benefits are great. Garmin has made this generation of GPS tracking watches better than ever, you should not be disappointed.